期刊论文

Yi, J.

中文

土壤学报

0564-3929

2022

59

5

1321-1335

10.11766/trxb202102230616

* 国家自然科学基金项目（41771261，41601215）和湖北省自然科学基金重点项目（2015CFA141）资助 Supported by the National Natural Science Foundation of China（Nos.41771261，41601215）and Natural Science Foundation of Hubei Province（No.2015CFA141）

本校为第一机构

研究土壤优先流运动特征与植被覆盖、坡位及土壤结构的关系，既能丰富山坡水文学的研究内容，还能进一步揭示森林涵养水源、保持水土的机制。以三峡库首大老岭林区常绿林、林灌混合落叶林和弃耕草地覆盖的坡地为研究对象，运用染色示踪和图像处理的方法，定量分析了3种植被覆盖的坡上和坡下位置优先流染色特征，阐明了植被覆盖和坡位对土壤优先流运动和坡面水分入渗特征的影响。结果表明：（1）各样地染色面积比（SAR）和染色路径数（SPN）均呈现浅层高、深层低的特征。不同植被覆盖下，0～60 cm土层的SAR表现为落叶林坡地（44.2%）＞弃耕坡地（36.1%）＞常绿林坡地（35.3%），SPN表现为落叶林坡...

【Objective】Studying the effects of topographic position, vegetation cover, and soil property on the characteristics of preferential flow in mountainous areas can enrich research content of hillslope hydrology, and further reveal the mechanism of forestland in soil and water conservation.【Method】Dye tracing experiments using Brilliant blue solution combined with photographed images analysis were carried out in the Dalaoling forestland of the Three Gorges area to explore the transport features of preferential flow along with soil vertical pro...